Dipropylamine → HCID 15106962, compound

HRID 2108063Notes

Reaction equation

HRID 2108063 reaction equation
[Cl:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[C:8]1[C:14]2[CH:15]=[C:16]([CH2:18][CH2:19][C:20](O)=[O:21])[S:17][C:13]=2[N:12]2[C:23]([CH3:26])=[N:24][N:25]=[C:11]2[CH:10]([CH3:27])[N:9]=1.ON1C2C=CC=CC=2N=N1.[CH2:38]([NH:41][CH2:42][CH2:43][CH3:44])[CH2:39][CH3:40].C1(N=C=NC2CCCCC2)CCCCC1>CN(C)C=O>[CH2:38]([N:41]([CH2:42][CH2:43][CH3:44])[C:20](=[O:21])[CH2:19][CH2:18][C:16]1[S:17][C:13]2[N:12]3[C:23]([CH3:26])=[N:24][N:25]=[C:11]3[CH:10]([CH3:27])[N:9]=[C:8]([C:3]3[CH:4]=[CH:5][CH:6]=[CH:7][C:2]=3[Cl:1])[C:14]=2[CH:15]=1)[CH2:39][CH3:40]

Participants

6

Reactant 4

HCID 8902DipropylamineHCID 10868DicyclohexylcarbodiimideHCID 757711-HydroxybenzotriazoleHCID 14699764HCID 14699764, compound

Product 1

HCID 15106962HCID 15106962, compound

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

To a solution of 1.1 g of 3-[4-(2-chlorophenyl)-6,9-dimethyl-6H-thieno[3,2-f][1,2,4]triazolo[4,3-a][1,4]diazepin-2-yl]propionic acid in 15 ml of dimethylformamide are added 0.4 g of N-hydroxybenzotriazole and 0.4 ml of dipropylamine and stirred at room temperature for 10 minutes. To the mixture is added 0.65 g of dicyclohexyl carbodiimide under ice-cooling and stirred for 4 hours and furthermore stirred at room temperature for 16 hours. The resulting dicyclohexylurea is filtered off and to the filtrate is added 50 ml of chloroform. The solution is washed with 5% aqueous sodium hydrogencarbonate solution and water and dried over anhydrous magnesium sulfate. After separating by filtration, the filtrate is concentrated under reduced pressure and the residue is subjected to chromatography on silica gel and then eluted with a mixture of chloroform-methanol (100:1 to 100:3). The eluate of the objective fraction is concentrated under reduced pressure to give 1 g of 3-[4-(2-chlorophenyl)-6,9-dimethyl-6H-thieno[3,2-f][1,2,4]triazolo[4,3-a][1,4]diazepin-2-yl]propionic acid N,N-dipropylamide as pale yellow viscous oil.

Workup

  1. temperaturecooling
  2. stirringstirred for 4 hours
  3. stirringfurthermore stirred at room temperature for 16 hours
  4. filtrationThe resulting dicyclohexylurea is filtered off and to the filtrate
  5. additionis added 50 ml of chloroform
  6. washThe solution is washed with 5% aqueous sodium hydrogencarbonate solution and water
  7. dry with materialdried over anhydrous magnesium sulfate
  8. customAfter separating by filtration
  9. concentrationthe filtrate is concentrated under reduced pressure
  10. washeluted with a mixture of chloroform-methanol (100:1 to 100:3)
  11. concentrationThe eluate of the objective fraction is concentrated under reduced pressure

Sources & evidence

ORD record
ord-87fe0ff6eafb4ddd8f4fa2c5a7eb8e4e
Source dataset
uspto-grants-1990_06
Patent number
US04937240

Reaction notes

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